import java.util.*;
import java.io.*;
public class Read {
    StringTokenizer st = new StringTokenizer("");
    BufferedReader bf = new BufferedReader(new InputStreamReader(System.in));
    String next() throws IOException{
        while(!st.hasMoreTokens()){
            st = new StringTokenizer(bf.readLine());
        }
        return st.nextToken();
    }

    String nextLine() throws IOException{
        return bf.readLine();
    }

    int nextInt() throws IOException{
        return Integer.parseInt(next());
    }
    Long nextLong() throws IOException{
        return Long.parseLong(next());
    }


    public static void main(String[] args) {

        Read read = new Read();
        PrintWriter printWriter = new PrintWriter(
                new BufferedWriter(new OutputStreamWriter(System.out)));
        printWriter.close();
    }
}